© 2000 SEMTECH CORP.

652 MITCHELL ROAD NEWBURY PARK CA 91320

400mA/200mA Dual 3.3V Smart

Power Switch

SC1543

PRELIMINARY - October 9, 2000

2

ABSOLUTE MAXIMUM RATINGS

Parameter

Symbol

Maximum

Units

Input Supply Voltage

VIN1,2

-0.5 to +6

V

Output Current From:

VIN1

VIN2

I

O

400

200

mA

Operating Ambient Temperature Range

T

A

-40 to +85

°C

Operating Junction Temperature Range

T

J

-40 to +125

°C

Storage Temperature Range

T

STG

-65 to +150

°C

Lead Temperature (Soldering, 10 Sec.)

T

LEAD

300

°C

Thermal Impedance Junction to Ambient

θ

JA

206

°C/W

ELECTRICAL CHARACTERISTICS

(1)

Unless specified, T

plied from VIN2). Values in bold apply over full operating temperature range.

Parameter

Symbol

Conditions

Min

Typ

Max Units

VIN1

Supply Voltage

VIN1

3.0

3.3

3.6

V

Quiescent Current

I

Q1

VIN1 > VIN2, I

150

300

µA

VIN1 < VIN2

15

50

VIN1 = SHDN = 3.3V

1

10

Reverse Leakage From VIN2

(2)

I

VIN1

VIN1 = 0V, VIN2 = 3.6V, I

0.25

1.00

µA

VIN2

Supply Voltage

VIN2

3.0

3.3

3.6

V

Quiescent Current

I

Q2

VIN2 > VIN1, I

150

300

µA

VIN2 < VIN1

1

10

VIN2 = SHDN = 3.3V

1

10

Reverse Leakage From VIN1

(2)

I

VIN2

VIN1 = 3.6V, VIN2 = 0V, I

0.25

1.00

µA

VIN1 Threshold Voltage

Threshold Voltage

V

TH

2.80

2.90

3.00

V

Hysteresis

V

HYST

130

mV

Power Switches

VIN1 Pass Device R

DS(ON)

(2)

R

DS(ON)1

VIN1 = 3.3V, VIN2 = 0V

100

250

m

Ω

VIN2 Pass Device R

DS(ON)

(2)

R

DS(ON)2

VIN1 = 0V, VIN2 = 3.3V

150

400

m

Ω